A 24β-ETHYL-Δ7-STERYL GLUCOPYRANOSIDE FROM CUCURBITA PEPO SEEDS

Article abstract of DOI:10.1016/S0031-9422(00)80716-5

In the seeds of Cucurbita pepo three closely related 24-ethyl-Δ⁷-steryl glucosides were identified by hydrolytic studies and spectral analysis as spinasteryl-β-D-glucopyranoside, the new 3-O-(β-D-glucopyranosyl)-24β-ethyl-5α-cholesta-7,25(27)-dien-3β-ol and the corresponding Δ^22E,25(27)-trienol.Except for its occurence in cucumber seeds the latter is so far unknown as a natural product. Key Word Index - Cucurbita pepo; Cucurbitaceae; pumpkin; seeds; steryl glucosides; 3-O-(β-D-glucopyranosyl)-24β-ethyl-5α-cholesta-7,25(27)dien-3-β-ol; 3-O-(β-D-glucopyranosyl) -24β-ethyl-5α-cholesta-7,trans-22,25(27)-trien-3β-ol; spinasteryl-β-D-glucopyranoside.